An etymological dictionary of the Chinantec languages. Rensch, Calvin R. (Calvin Ross). 1989. Summer Institute of Linguistics and the University of Texas at Arlington publications in linguistics, 1040-0850 ; 87.
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A reference grammar of Southeastern Tepehuan. Willett, Thomas L. 1991. Summer Institute of Linguistics and the University of Texas at Arlington publications in linguistics, 1040-0850 ; 100.
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